Instead of using the application forms referred to in 11.0228, any person or organization may, in an emergency situation described in 11.0227, make application for a determination of need by filing with the agency a letter stating the identity of the applicant, the nature of the emergency, and the nature, scope, location, and estimated cost of the project. Within the discretion of the agency, the applicant may subsequently be required to submit any or all of the usual application forms.